This is the motor controller for 2021 VelectriX Urban models on 27.5" wheels. The Santroll 36 V, 15 A unit manages power between the battery and motor, and it's the 2021 version, wired for that year's light connections.

• Made for the 2021 Urban – model number WZKD3615A-TPYXV10-F4, as VelectriX specifies for these bikes.
• 2021 light connections – VelectriX notes the lighting connections differ from the 2023 Urban controller.
• Matched to the 36 V system – rated 36 V, 15 A.
• Genuine VelectriX replacement – part code VXAUS10277.

Why the exact controller matters

VelectriX makes a separate Santroll controller for each model and wheel size, programmed to suit. Fit one from another bike and the speed reading, the 25 km/h assist cut-off or the light wiring may not line up.

Fit and compatibility

Suits 2021 VelectriX Urban models with 27.5" wheels only. Not for the Urban Pulse, and not for 2023 Urban bikes, which take VXAUS10829. Check the model number on your existing controller before ordering, or ask Tune.

Tune's workshop can fit the controller and test the system before you ride.